Abstract: A field-installable multi-fiber ferrule has two portions and one portion has optical fibers already secured therein. The second portion receives optical fibers to mate with the secured optical fibers. A tool is provided to assist in inserting the optical fibers into the multi-fiber ferrule by aligning and holding the optical fibers while they are secured in the multi-fiber ferrule.

Abstract: A waterproof connector is to be connected to a mating connector, and a waterproof apparatus includes the waterproof connector and the mating connector. The waterproof connector includes a connector member to be connected to an adapter member; a connecting member to be connected to a cylindrical portion of a mating connector; and a main body portion. The connector member is able to slide along a facing direction of the connectors in a given range. The waterproof connector and the waterproof apparatus improve an efficiency of the performance by associating the operations with each other.

Abstract: An optical connector according to the present invention comprises a ferrule and a V-groove board connected to the ferrule, wherein a first optical fiber and a second optical fiber being butt jointed in a V-groove formed in the V-groove board so as to be interconnected; the second optical fiber is connected to the first optical fiber through a refractive index matching material of cross-link curing type applied to an end surface on the V-groove board side of the first optical fiber; and spaces are provided in the V-groove so as to relax stress loaded on the refractive index matching material of cross-link curing type.

Abstract: A fiber optic connector including a ferrule surrounding an optical fiber and a hub engaging the ferrule. The hub includes a front portion having first and second opposing surfaces and first and second tapered regions extending from the first and second opposing surfaces to a front face. A housing includes an anti-rotation seat configured to engage the first and second opposing surfaces, the anti-rotation seat including parallel first and second contact lines positioned at a front of the anti-rotation seat. A spring within a chamber of the housing biases the ferrule through a bore in the front of the housing. The first tapered region of the hub engages the first contact line and the second tapered region engages the second contact line when the hub and ferrule are in a first rotational position so that the optical fiber is maintained at a known orientation with respect to the connector.

Abstract: This invention discloses highly scalable and modular automated optical cross connect switch devices which exhibit low loss and scalability to high port counts. In particular, a device for the programmable interconnection of large numbers of optical fibers (100's-1000's) is provided, whereby a two-dimensional array of fiber optic connections is mapped in an ordered and rule-based fashion into a one-dimensional array with tensioned fiber optic circuit elements tracing substantially straight lines there between. Fiber optic elements are terminated in a stacked arrangement of flexible fiber optic circuit elements with a capacity to retain excess fiber lengths while maintaining an adequate bend radius. The combination of these elements partitions the switch volume into multiple independent, non-interfering zones, which retain their independence for arbitrary and unlimited numbers of reconfigurations.

Abstract: A telecommunications assembly includes a chassis and a plurality of fiber optic splitter modules mounted within the chassis. Each splitter module includes at least one fiber optic connector. Within an interior of the chassis are positioned at least one fiber optic adapter. Inserting the splitter module through a front opening of the chassis at a mounting location positions the connector of the splitter module for insertion into and mating with the adapter of the chassis. The adapters mounted within the interior of the chassis are integrally formed as part of a removable adapter assembly. A method of mounting a fiber optic splitter module within a telecommunications chassis is also disclosed.

Abstract: An optical connector 10 includes a ferrule 20 to secure the set of multiple optical fibers 100, a plug member 21 to hold the ferrule 20, and a spacer 22 having a pin 23 for guiding, the spacer being integrally fixed to the ferrule 20 by means of inserting the pin 23 into the ferrule 20 to be secured together with the ferrule within the plug member 21, wherein the ferrule 20 has at least one first positioning portion for example a recessed portion 51, 52, and the spacer 22 has at least one second positioning portion for example a projection 61, 62 which is fitted to a corresponding first positioning portion to position the ferrule to the spacer.

Abstract: Circuits, apparatus, and methods that provide a connector system that can supply both power and data to a mobile computing or other type of device using a single connection. Further examples also provide a power and data adapter that can provide power and data to a mobile computing device using a single cable. Further examples provide an easy disengagement when a cable connected to the connector is pulled. One such example provides a magnetic connector that uncouples without binding when its cord is pulled. Another example prevents power from being provided at a connector insert until the connector insert is placed in a connector receptacle.

Abstract: A connector that enables fiber optic cables to terminate at equipment in cabinets having little space available for cable routing, without over bending. The construction includes a connector housing, and a yoke including a collar joined to a rear end of the housing. A tubular cable bend limiter is fixed at one end to the collar and the limiter directs a cable containing one or more bend insensitive fibers through a bend of, e.g., 90 degrees, between the collar and the opposite end of the limiter with a fiber bend radius of less than one inch (25.4 mm). If the limiter creates a fiber bend radius of 0.300 inch (7.62 mm), the distance between the front of the connector and the cable after bending may be as little as 1.26 inches (32 mm), allowing the cable and connector to be routed and terminated in limited space without impairing performance.

Abstract: Disclosed is an optical connector plug includes an approximately square cylindrical rear cover of an insulating member fitted over an outer surface of a stop ring, and a cylindrical front cover which is urged frontward by an elastic member and is slidable back and forth at an outer surface of a plug frame. The front cover has a plate-like shutter having flexibility on an inner wall, which blocks the tip of a ferrule. The shutter has an upright curved portion formed by curving a tip side in an arc shape. When the front cover moves backward, the curved portion of the shutter is pressed against a tip of the plug frame to become flat and is pressed against the inner wall of the front cover to be retained in a plate form, thereby releasing a light-shielding state of the optical fiber.

Abstract: The invention relates to a data transmission cable (10; 20), in particular for motor vehicles, at at least one of whose ends a plastics housing (14; 24) is arranged, said housing having mechanical dimensions in its interface region (30; 32) which conform to the FAKRA standardisation scheme. The data transmission cable (10; 20) has an optical waveguide, wherein a holding member (40) is provided in the plastics housing (14; 24), said holding member being configured for holding an optical imaging element (42) and for connecting the optical imaging element (42) to the optical waveguide.

Abstract: A ferrule for an evanescence field sensor line is specified that has a lower part and a correspondingly attachable upper part. The upper and lower parts respectively have a recess substantially in the shape of a half shell in such a way that in the assembled state a guide tube is formed for holding an optical wavelength in a fashion enclosing the end face. A number of geometric structures for locally fixing the optical wavelength are respectively arranged in the recesses. Furthermore, a pressure sensor having such a ferrule is specified that contains an optical wavelength configured for pressure acquisition by influencing the assigned evanescence field, and at least one optoelectronic module. The ferrule is assigned to the optoelectronic module.

Abstract: Connector for the termination of optical transmission media including a connector housing and at least one connector inner part arranged therein, which includes a ferrule with a bore for receiving the optical transmission media, wherein the ferrule is arranged in the connector inner part so that it can be moved axially against the force of a spring, wherein the connector inner part is joined to the connector housing by a snap connection, wherein the connector housing has at least one opening into which a locking tab engages when in the installed position, wherein the locking tab is a triangular elevation, extending radially, in longitudinal section in axial direction, on a cylindrical part of the connector inner part.

Abstract: A connector having a front and back orientation and comprising: (a) a cable having at least a jacket and an optical fiber; (b) a ferrule assembly comprising a rear portion for attachment to said jacket, and a ferrule defining a bore hole for containing said optical fiber; (c) a housing having a front portion configured for mating with a mating structure and a back portion configured for attachment to a boot; (d) a spring biasing said ferrule assembly forward in said housing; and (e) a boot secured to said back portion of said housing and extending rearward around said tight-jacketed cable, said boot having an internal channel large enough to allow axial movement of said ferrule assembly relative to said boot.

Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.

Abstract: The invention refers to an optical fiber connector with a support member and a ferrule for receiving an optical fiber and fixed to the support member. The optical fiber is embedded in the ferrule. An end face of the optical fiber is arranged on the support member, while an alignment element is connected with the support member. The end face of the optical fiber abuts with the alignment element, whereby the alignment element aligns the end face of the optical fiber relative to a predetermined optical path.

Abstract: A fiber optic connector assembly includes a connector housing, a connector base, and an optical fiber connector. The connector housing extends along a center axis from a mating end to a cable receiving end with a passage extending therebetween. The mating end is received in a mating connector that is mounted to a panel. The connector base is secured to the mating end of the connector housing and includes a channel extending therethrough. The channel receives an optical fiber. The optical fiber connector is coupled to the optical fiber and mates with the mating connector to optically couple the optical fiber with the mating connector. The optical fiber connector is slidably joined to the connector base to permit the optical fiber connector to axially move along the center axis relative to the connector housing when the connector housing mates with the mating connector.

Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.

Abstract: A strain-relief assembly for a field-installable fiber optic connector is disclosed, wherein the assembly includes a ferrule holder, an intermediate sleeve, and a crimp sleeve. The ferrule holder back section holds a buffered section of a fiber optic cable, while the ferrule holder front end holds a ferrule and a splice assembly. A stub fiber is held within the ferrule and the splice assembly so as to interface with a section of field optical fiber protruding from the buffered section. The intermediate sleeve engages and generally surrounds a portion of the ferrule holder back section and thus surrounds a portion of the buffered layer. An intermediate sleeve handler may be used to handle the intermediate sleeve and attached the intermediate sleeve to the ferrule holder back section. Stress-relief strands from the fiber optic cable are flared around the outer surface of the intermediate sleeve. A crimp sleeve is placed over the intermediate sleeve to hold the ends of the stress-relief strands in place.

Abstract: A fiber optic assembly comprising an adapter assembly defining an internal cavity, a first end for a receiving a first fiber optic connector, and a second end for receiving a second fiber optic connector, wherein the first and the second fiber optic connectors are dissimilar. A fiber optic connection comprising a first fiber optic connector comprising a connector housing, a first multi-fiber ferrule, and a clearance about an end face of the first multi-fiber ferrule for clearing a ferrule surround during connector mating, and a second connector that is a FOCIS 5 compliant MTP connector.

Abstract: A molded interconnect device (MID) optical connector includes a molded plastic body and a metal retaining clip. The body has a receptacle portion shaped to receive and guide a mating optical fiber ferrule into a connected position. In the connected position, the end of a fiber retained in the ferrule is in optical alignment with an opto-electronic device in the MID optical connector. The retaining clip has one or more contact portions that extend into the receptacle portion of the body and exert a spring force upon the ferrule to retain and stabilize it in the connected position.

Abstract: An optical connector includes an optical element to be optically connected to an optical fiber; and an optical component. The optical component includes an element fixation part configured to fix the optical element to the optical component; a ferrule attachment part to which a ferrule having the optical fiber connected thereto is to be attached; and a lens to face the optical fiber when the ferrule is attached to the ferrule attachment part. The optical element is positioned relative to the optical fiber in response to attachment of the ferrule to the ferrule attachment part.

Abstract: There is provided a waterproof connector. The waterproof connector comprises a connector member supporting a ferrule to be butted against a target ferrule disposed in a target connector, the connector member being adapted to be locked to an adapter member of the target connector by an action of a lock operation portion provided in the connector member; unlocking means being adapted to operate the lock operation portion to release the locked state; and a housing body allowing the unlocking means to be slidably moved. The waterproof connector is adapted to be released from the connection with the target connector in such a manner that the unlocking means is allowed to be moved away from the connector member, whereby the unlocking means is operable to operate the lock operation portion to release the locked state, and to move the connector member away from the adapter member to release the fitting.

Abstract: The present invention relates to an optical fibre connector, and in particular to a Subscriber Connector (SC)-type push/pull optical fibre connector and to a method of forming and using such a connector. The SC-type optical fibre connector (101) comprises an optical fibre (8), a cylindrical ferrule (14), a ferrule holder (16), a spring biasing means (17), a ferrule holder carrier (50), an inner housing (120), and an outer housing (40). The optical fibre (8) is held within the ferrule (14) along an axis (5) of the ferrule, the optical fibre (8) being terminated at an end face (34). The ferrule (14) is held by the ferrule holder (16).

Abstract: A single-channel, expanded beam connector having a front and rear orientation and comprising: (a) a housing; (b) an outer sleeve at least partially contained by the housing; (c) a first inner sleeve disposed at least partially in the outer sleeve; (d) a ferrule disposed at least partially in the first inner sleeve; (e) a lens disposed at least partially in the first inner sleeve in front of the ferrule, wherein the lens and the ferrule have about the same outside first diameter which is just slightly less than that of the inside diameter of the first inner sleeve such that the ferrule and the lens are held in optical alignment in the first inner sleeve, and wherein the distal end of the outer sleeve extends beyond the inner sleeve to receive a second inner sleeve of a mating structure, the first and second inner sleeves having the same diameter which is just slightly less than the inside diameter of the outer sleeve such that the first and inner sleeves are aligned within the outer sleeve.

Abstract: An optical connector for terminating an optical fiber comprises a housing configured to mate with a receptacle and a collar body disposed in the housing. The collar body includes a ferrule securely disposed in an opening of the collar body, the ferrule including a central bore that defines an axis, and a housing portion disposed in a generally central portion of the collar body. The housing portion includes an opening to receive a gripping device to grip an optical fiber. The ferrule is axially moveable independent of the axial movement of the optical fiber and gripping device. The optical connector can be thermally balanced over a temperature range of at least 100° C.

Abstract: A hauling shroud, a cable termination and methods of hauling a fibre optic cable with a pre-connected optic termination along a conduit. The hauling shroud protects the optic termination when being hauled along the conduit. The hauling shroud includes a first housing member and a second housing member such that the first housing member and the second housing member can be joined together to enclose the optic termination. At least one anchoring member is used, for example, connecting pins, such that at least one strengthening element of the fibre optic cable engages with the anchoring member inside an internal cavity formed within the hauling shroud. Alternatively, at least two strengthening elements of the fibre optic cable are attached together to form a loop which engages with the at least one anchoring member, e.g., the connecting pins. This prevents any hauling forces from being applied to the optic termination.

Abstract: Provided is a ferrule holding member with a transparent body attached to an inner hole of a sleeve. The transparent body has a primary end face for bringing into contact with an end face of a plug ferrule at a halfway position in an axial direction of the sleeve. The primary end face of the transparent body has a convex curved surface obtained through heat treatment. The convex curved surface is preferably an unpolished surface, and a region with a radius of 75 ?m or more, centered around a shaft axis of the sleeve at the convex curved surface, has a convex spherical surface. Alternatively, the transparent body is directly fixed to an inner surface of the sleeve through heat treatment.

Abstract: A fiber optic connector and a fiber optic adapter are disclosed that are manually connectable and disconnectable with each other by a slideable latching means. The fiber optic connector includes an end defining a plug portion. The plug portion holds a ferrule and also directly engages a port on the fiber optic adapter. The plug portion includes a protrusion which also forms a latch catch. The port of the fiber optic adapter includes a flexible retention latch within a slot. The slot engages the protrusion and thus rotationally aligns the fiber optic connector and adapter. The flexible retention latch snaps into and out of the latch catch when the plug portion of the fiber optic connector is slid into and out of the port of the fiber optic adapter thus providing the slideable latching means. Angled retaining surfaces are provided on the retention latch and the latch catch that engage each other. Angles defining the angled retaining surfaces are chosen to provide desired holding and release characteristics.

Abstract: A field-installable optical connector for terminating an optical cable, said connector comprising: (a) a housing having a front and back orientation; (b) a rear body attached to the back of said connector housing; (c) a ferrule assembly disposed in said connector housing, said ferrule assembly comprising at least a ferrule adapted for receiving a fiber of said cable, and a clamping mechanism to the rear of said ferrule, said clamping mechanism comprising at least a platform defining a fiber-receiving channel for receiving said fiber, a first member adjacent to the fiber-receiving channel and having at least one cam surface, and a second member having a second cam surface, said first and second cam surfaces cooperating such that relative movement between said first and second members causes said first member to move toward said fiber-receiving channel; (d) an actuator operatively connected to said second member to cause said second member to move relative said first member upon axial movement of said actuator,

Abstract: A connectorized fiber optic cabling assembly includes a loose tube fiber optic cable and a connector assembly. The cable has a termination end and includes: an optical fiber bundle including a plurality of optical fibers; at least one strength member; and a jacket surrounding the optical fiber bundle and the at least one strength member. The connector assembly includes a rigid portion and defines a fiber passage. The connector assembly is mounted on the termination end of the cable such that the optical fiber bundle extends through at least a portion of the fiber passage. The plurality of optical fibers of the optical fiber bundle have a ribbonized configuration in the rigid portion of the connector assembly and a loose, non-ribbonized configuration outside the rigid portion. The plurality of optical fibers undergo a transition from the ribbonized configuration to the loose, non-ribbonized configuration in the rigid portion of the connector assembly.

Abstract: A device and method of blocking customer access to a fiber optic distribution cable. A service blocker is positioned between a fiber distribution cable and a customer drop cable within a fiber optic adapter. The service blocker includes a body which does not permit optical transmission between the fiber distribution cable and the customer drop cable. The service blocker includes a first end configured to be inserted within the fiber optic adapter and a second end configured connect with a fiber optic cable connector. A system for mounting fiber optic cables including a service blocker positioned within a bulkhead mounted adapter between two fiber optic cables.

Abstract: An interface converter is provided for mechanically and optically coupling a non-ruggedized fiber optic connector with a ruggedized adapter port. In a preferred embodiment, the interface converter attaches to an SC fiber optic connector and together form a converted fiber optic connector compatible with the ruggedized adapter port. In certain embodiments, a retractable release sleeve may be removed from the SC fiber optic connector prior to attaching the interface converter. In certain embodiments, the interface converter may be inserted into the ruggedized adapter port prior to being attached to the SC fiber optic connector.

Abstract: An optical fiber feedthrough assembly includes a glass plug disposed in a recess of a feedthrough housing. The glass plug may define a large-diameter, cane-based, waveguide sealed within the recess in the housing and providing optical communication through the housing. Sealing occurs with respect to the housing at or around the glass plug of an optical waveguide element passing through the housing by braze sealing to the glass plug and/or embedding the glass plug in a polymer bonded with the plug to form a molded body that is sealed in the housing by, for example, compression mounting of the molded body or providing a sealing element around the molded body.

Abstract: To minimize the space requirement inside a cassette and make cable retention force consistent and easy for fiber routing/rework, a cassette includes a cassette base molded to include a plurality of holders, a cassette cover to close the cassette base, and a plurality of blocks, respectively disposed into the holders, each of the blocks including one or more holes to accommodate one or more fiber cables. The fiber cables are fixed in the holes using a type of adhesive. In addition, bare fibers are placed inside the cassette to communicate respectively with the fiber cables.

Abstract: An optical module with a ferrule assembly able to be easily produced is disclosed. The ferrule with a tubular shape provides first to third bores. The first bore receives the optical fiber with a sheath, the second bore receives only the glass core of the fiber, which is obtained by removing the sheath, and the third bore has a diameter substantially equal to the outer diameter of the glass core of the fiber. A resin is filled in the gap between the sheath and the third bore, and in the gap between the glass core of the fiber and the second bore. The tip of the glass core is tilted with the axis and protrudes from the end surface of the ferrule.

Abstract: An optical connector of a fitting pin positioning type includes multiple optical fiber insertion holes arranged in one row and fitting holes or fitting pins. The fitting holes or the fitting pins for positioning are respectively disposed on mutually opposite sides of a straight line connecting centers of the optical fiber insertion holes and are located point-symmetrically with respect to a center of the row of the entire optical fiber insertion holes arranged on the straight line.

Abstract: The invention is based on a hybrid plug which produces both optical waveguide connections and electrical connections to a corresponding mating plug. In order to avoid mutual spherical optical transfer parts with an air crossover between the optical waveguides and the paralleling ball parts, it is proposed that the plug has a mounting and centering part and a lens part with encapsulated lenses which are produced from same polymer material and are adhesively bounded to one another. They have common channels for the ferrules which are inserted into ferrule holders with the optical waveguides.

Abstract: An interface converter is provided for mechanically and optically coupling a fiber optic connector with an adapter port. In a preferred embodiment, the interface converter attaches to an SC fiber optic connector and together form a converted fiber optic connector compatible with the adapter port. In certain embodiments, a retractable release sleeve may be removed from the SC fiber optic connector prior to attaching the interface converter. In certain embodiments, the interface converter may be inserted into the adapter port prior to being attached to the SC fiber optic connector.

Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.

Abstract: An optical fiber interconnect system wherein the adapter is connected to and released from the holder and the connector is connected to and released from adapter through two push-release connection and release mechanisms. The connector is engaged with the adapter by applying an insertion force to the connector. The connector is released by applying a releasing force to the connection mechanism on the adapter. The system of the invention includes a holder for attachment of the adapter to a front panel. A release opening is provided on the holder for the release of the adapter from the holder from the front of the panel so as to provide access to the back connector.

Abstract: The present invention provides an optical adapter, which can suppress electromagnetic waves from an optical communication module, is provided. An optical adapter comprises: a housing; an optical fiber which is housed in the housing; and a ferrule which is housed in the housing. The housing has a first edge to be inserted into a receptacle of an optical communication module, and a second edge for insertion of an optical connector plug. The optical fiber has a first edge to optically couple with the receptacle, and a second edge to optically couple with the optical connector plug. The ferrule houses the optical fiber. At least a part of the housing or at least part of the ferrule is formed of an electromagnetic absorption material.

Abstract: An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable (2) onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly (26, 40), that includes a cable fixing member (26) and a cable holder (40), for fixing an outer covering (2c) of the optical fiber cable (2) introduced into said connector housing (10).

Abstract: The present invention relates to an optical receptacle which prevents the occurrence of a large impact by collision of a plug body with an optical propagation member. The optical receptacle includes a solid sleeve having a cavity hole into which the plug body is inserted from its one end side and which has an even inner diameter so as not to substantially define a gap with respect to an outer diameter of the plug body and an optical propagation member fixedly secured to the other end side of the cavity hole, with the solid sleeve being formed such that a length from an end portion of the cavity hole on the plug body insertion side to the optical propagation member is longer than a maximum length of extension due to the elastic body of the terminal member.

Abstract: An illumination fiber optic ribbon includes optically-transmissive fibers which are adjacent to each other. At least two of the optically-transmissive fibers are twisted together to form a twisted segment. Where the two optically-transmissive fibers are not twisted forms a non-twisted segment. The twisted segments and non-twisted segments alternate along the length of the ribbon. Bends are disposed along the twisted segment and are formed by twisting adjacent optically-transmissive fibers. A light source is connected to one or both ends of the optically-transmissive fibers. The light source emits a light flux into the ribbon so that light emits from the bends in the twisted segment.

Abstract: The present invention relates generally to ferrule holders and associated fiber optic connectors used in optical communications networks, optical devices, and the like to optically couple optical fibers. More specifically, the present invention relates to a ferrule holder and an associated fiber optic connector having improved anti-withdrawal and anti-rotation features, such as a twin-threaded configuration, a single-threaded configuration, a splined configuration, a broached configuration, a counter-bored configuration, a dented configuration, a finned configuration, etc. These anti-withdrawal and anti-rotation features assist in holding an optical fiber in secure optical and/or physical contact with a ferrule within the ferrule holder and associated fiber optic connector.

Abstract: The invention relates to an adapter of the type where a coupling for glass fiber plug-in connectors is inserted from the front into a front plate and is locked by a spring. The inventive adapter comprises a one-piece or two-piece housing which comprises at least on one side a flange projecting from the cross-section of the housing against which the front plate rests, at least one plug-in connector recess which is disposed on the front end and/or rear end with respect to the front plate, and at least one form-fit detachable locking device for the plug-in connector. Every plug-in connector recess comprises an opening for alternately receiving at least two of three different plug-in connector types LX.5, LC and MU of and one respective locking device suitable for the respective type. The adapter can be configured as a simplex plug-in coupling for alternately receiving all three types, or as a duplex plug-in connector for alternately receiving the plug types LX.5 and LC.

Abstract: An optical connector has a ferrule, an optical fiber connector disposed at an back end of the ferrule, an internal optical fiber inserted into the ferrule and the optical fiber connector, the internal optical fiber being adapted to butt-connect at a back end face thereof to an external optical fiber to be inserted into the optical fiber connector, and a refractive index matching body attached to the back end face of the internal optical fiber. The refractive index matching body has a cross-linked and hardened cross-linkable refractive index matching agent including a stress-strain relaxation agent.

Abstract: Operation efficiency can be dramatically improved and a smaller configuration can be obtained by simplifying the optical connection. An optical module has an electrical connector to connect a device; an optical element unit being electrically connected to the electrical connector and provided with optical elements to convert electrical signals and optical signals and emitting or receiving light; an optical ferrule, having a plurality of optical fiber insertion holes, to hold optical fibers inserted into the plurality of optical fiber insertion holes so as to allow the fibers to be optically connected to the optical element; and an optical cable inlet to introduce an end part of an optical cable provided with the optical fibers. The cable unit with an optical module has an optical cable that includes a plurality of optical fibers and an optical module provided at two ends of the optical cable.

Abstract: A plastic ferrule (1) for optical connecting systems, in which a optical wave guide (3) of an optical fibre (6) is guided through a support element (2), whereby the optical wave guide (3) is surface-conditioned in a partial area (4) in order to bond in a force-actuated way to a hardened casting mass (5) in this partial area (4).